About Us
Columbus T Clinic was founded with a simple belief: men deserve healthcare that is personal, accessible, and focused on helping them feel like themselves again.
At some point, many men look in the mirror and wonder what changed. Energy may be lower. Strength and motivation may not be what they once were. Weight becomes harder to manage, recovery takes longer, confidence can decline, and sexual health may begin to affect both physical and emotional well-being.
At Columbus T Clinic, we understand that every man’s situation is different. Your symptoms, lifestyle, health history, and goals are unique, and your treatment should be too.
Our approach goes far beyond simply prescribing testosterone. We provide individualized men’s health care designed around the whole person, with treatment options that may include testosterone replacement therapy, erectile dysfunction management, GLP-1 weight-management therapy, peptide therapy, performance and recovery support, healthy-aging strategies, and select primary and acute-care services.
We believe successful treatment starts with listening. We take the time to understand where you are today, what you want to improve, and what is realistically achievable. Treatment plans are developed using appropriate laboratory testing, ongoing monitoring, regular follow-up, and adjustments based on your individual response and goals.
For men working toward better body composition, strength, metabolic health, and long-term wellness, CTC also offers access to fitness, nutrition, and lifestyle coaching. We recognize that physical health is only part of the equation, which is why personal counseling and emotional wellness support can also be incorporated into a more comprehensive approach to care.
Our goal is not to turn you into someone else.
It is to help you become a healthier, stronger, more confident version of yourself.
Whether your goals involve restoring testosterone levels, improving sexual health, losing weight with GLP-1 therapy, exploring peptide therapy, improving recovery and performance, or simply taking better control of your health as you age, Columbus T Clinic is here to help you develop a plan that fits your life.
Most importantly, we want our patients to feel comfortable talking openly about issues that men are often reluctant to discuss. There should be no embarrassment or stigma surrounding low testosterone, erectile dysfunction, weight concerns, declining energy, or the desire to improve your health and quality of life.
At Columbus T Clinic, you are not simply another appointment on the schedule. You become part of a clinic that knows you, follows your progress, and works with you as your goals evolve.
Men’s healthcare should be convenient, personal, and built around the patient. Columbus T Clinic brings that care directly to you, giving you access to experienced medical professionals and individualized support from wherever you are.
If you are ready to take a more active role in your health, performance, confidence, and longevity, we would be honored to be part of that journey.
We look forward to helping you take the next step.
Sincerely,
Dr. Kirk Rankine, MD
Allan P. Dunkle, FNP-BC, MSN, BMS
Columbus T Clinic
Personalized Men’s Health. Built Around You.
Our Team

Dr. Kirk Rankine, MD
CTC Medical Director
Medical School
SUNY Upstate Medical University, Syracuse, New York
Residence
Internal Medicine Residency, Ohio State University Wexner Medical Center, Columbus, OH
Fellowships
Nephrology Fellowship, Ohio State University Medical Center, Columbus, Ohio
Professional Memberships
American Society of Nephrology, American College of Physicians, Columbus Medical Association, National Kidney Foundation

Allan Dunkle
CTC Medical Practitioner
Allan is Columbus T Clinic’s medical practitioner. His focus is on restoring men’s lives back to homeostasis. Allan himself is a TRT success story. After losing 75 lbs and changing his overall lifestyle, he founded CTC due to the malpractice he personally experienced from other testosterone clinics. His overall approach is “know your labs, set your goals, start your path.” TRT is a lifetime lifestyle. The CTC approach is full transparency with no future surprises… Columbus T Clinic is here to help you reach your goals.

Chad Collums
CTC Life Optimization Coach
Chad is Columbus T Clinic’s Life Optimization Coach. He possesses a Master’s of Health Sciences and a Bachelor’s of Human Nutrition and Foods. He has been embedded in nutrition and wellness for over 20+ years. He brings a vast array of knowledge related to health and wellness; in addition to, anti-aging, longevity and biohacking strategies for optimal health. He is available for consultation independently.

Danny Maas
CTC Fitness and Nutrition Coach
Danny is Columbus T Clinic’s Fitness and Nutrition Coach. He brings over 3 decades of overall wellness and fitness. He will be your go to man to reach that next level of fitness. We are excited to be working with Danny and having him on our team. He is available for independent training and consultation.